Degradation Mode Test

Periodic Test of Degraded Modes

The Periodic Test of Degraded Modes is a software routine stored in radiation-hardened NOR flash memory that proactively exercises contingency pathways across the Lunar Ark system. Consuming 0.5 watts with a 100-year operational lifetime and a 500,000-hour mean time between failures, the system executes 50 scheduled tests per year coordinated to prevent operational disruption. Maintaining system confidence over century-long lunar missions requires systematic validation of unexercised backup states, using authenticated test execution, trend analysis, and audit trails to verify degraded operational paths before emergencies occur.

Periodic test exercising degraded modes confirming they will work when needed — proactive verification of failsafe paths.